单频蓝光激光器的实现  

Single-frequency laser at 473 nm by twisted-mode technique

作　　者：郝二娟[1] 李特[2] 檀惠明[2] 张里荃[1] 张岩[1] 马艳梅[1] 

机构地区：[1]吉林大学,吉林长春130062 [2]中国科学院长春光学机密机械与物理研究所,吉林长春130022

出　　处：《激光与红外》2009年第9期924-927,共4页Laser & Infrared

基　　金：国家"863"计划项目(No.2002AA311140)资助

摘　　要：在多纵模工作状态下,腔内倍频激光器往往存在很大的倍频光输出功率噪声,影响了其应用。文中用激光二极管(LD)泵浦Nd∶YAG晶体,采用三镜V形腔结构及扭摆腔技术,有效地解决了蓝光噪声问题。利用LBO内腔倍频技术,实现了稳定的单频蓝激光输出。在3.5 W的泵浦功率下,最大单频蓝光输出为105 mW,光-光转化效率为3.5%。实验结果表明,采用扭摆腔技术是实现473 nm蓝光单频高效运转的有效方案,可以有效地解决蓝光噪声问题。We experimentally demonstrate an all solid-state laser producing single-frequency output at 473nm. Spatial gain hole-burning in the gain material has been eliminated by use of twisted-mode cavity approach. By carefully designing, a V-cavity with two beam waists is chosen to provide the optimum beam radius in the gain medium Nd： YAG and second harmonic generation crystal LBO. A total output power of 105 mW was achieved when the laser was diode-end- pumped at an incident power of 3.5 W;the light-light conversion efficiency is up to 3.5%.

关 键 词：单频 扭摆腔 二极管泵浦 

分 类 号：TN248.1[电子电信—物理电子学]